vidar | 52a4ad8395e49789fa987b56b1881fe6093e91f8d5e34b9598e9e7b98cabd570

General

Target
3bd6f1203d096e38b85b1d72ea5b0c2c.exe
Size 628KB
Sample211112-1q3vmsecd4
SHA256 52a4ad8395e49789fa987b56b1881fe6093e91f8d5e34b9598e9e7b98cabd570
MD5 3bd6f1203d096e38b85b1d72ea5b0c2c
SHA1 f1a082f70bf05ca7a1e448fd3c2e00027988dcdd
SHA512 7cdadb6984c3524baf532d3334f623c3bbc01a1a9c60b1bf2d034575b4cb310d3af7c0d8b0181603867ab3593f0955e5d00d0d60726894e83ebdd0c42aa34052
MD5 SHA1 SHA512

Score

10^/10

vidar 1002 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

48.3

Botnet

1002

Attributes

profile_id
1002

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral1/memory/1168-57-0x0000000001E10000-0x0000000001EE5000-memory.dmp	family_vidar
behavioral1/memory/1168-58-0x0000000000400000-0x00000000004D8000-memory.dmp	family_vidar

Downloads MZ/PE file

Deletes itself 1 IoCs

pid	Process
1944	cmd.exe

Loads dropped DLL 4 IoCs

pid	Process
1168	3bd6f1203d096e38b85b1d72ea5b0c2c.exe
1168	3bd6f1203d096e38b85b1d72ea5b0c2c.exe
1168	3bd6f1203d096e38b85b1d72ea5b0c2c.exe
1168	3bd6f1203d096e38b85b1d72ea5b0c2c.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	3bd6f1203d096e38b85b1d72ea5b0c2c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3bd6f1203d096e38b85b1d72ea5b0c2c.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1756	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1532	taskkill.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1168	3bd6f1203d096e38b85b1d72ea5b0c2c.exe
1168	3bd6f1203d096e38b85b1d72ea5b0c2c.exe
1168	3bd6f1203d096e38b85b1d72ea5b0c2c.exe
1168	3bd6f1203d096e38b85b1d72ea5b0c2c.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1532	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1168 wrote to memory of 1944	1168	3bd6f1203d096e38b85b1d72ea5b0c2c.exe	30
PID 1168 wrote to memory of 1944	1168	3bd6f1203d096e38b85b1d72ea5b0c2c.exe	30
PID 1168 wrote to memory of 1944	1168	3bd6f1203d096e38b85b1d72ea5b0c2c.exe	30
PID 1168 wrote to memory of 1944	1168	3bd6f1203d096e38b85b1d72ea5b0c2c.exe	30
PID 1944 wrote to memory of 1532	1944	cmd.exe	32
PID 1944 wrote to memory of 1532	1944	cmd.exe	32
PID 1944 wrote to memory of 1532	1944	cmd.exe	32
PID 1944 wrote to memory of 1532	1944	cmd.exe	32
PID 1944 wrote to memory of 1756	1944	cmd.exe	34
PID 1944 wrote to memory of 1756	1944	cmd.exe	34
PID 1944 wrote to memory of 1756	1944	cmd.exe	34
PID 1944 wrote to memory of 1756	1944	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\3bd6f1203d096e38b85b1d72ea5b0c2c.exe
"C:\Users\Admin\AppData\Local\Temp\3bd6f1203d096e38b85b1d72ea5b0c2c.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1168
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im 3bd6f1203d096e38b85b1d72ea5b0c2c.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\3bd6f1203d096e38b85b1d72ea5b0c2c.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1944
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im 3bd6f1203d096e38b85b1d72ea5b0c2c.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1532
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:1756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1168-55-0x00000000760C1000-0x00000000760C3000-memory.dmp

Download

memory/1168-58-0x0000000000400000-0x00000000004D8000-memory.dmp

Download

memory/1168-56-0x0000000000220000-0x000000000029B000-memory.dmp

Download

memory/1168-57-0x0000000001E10000-0x0000000001EE5000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads